His team was onsite for six days with their vehicle and drone. The vehicle wasn't used because of the depth and muddiness of the water, but they were able to provide sonar imaging to create a map. All 12 boys and their coach were rescued alive from the cave.

Nakthewan’s is one of 47 high school and college teams competing for a total of $20,000 in prizes.

All of the teams have built submarines that navigate autonomously through an underwater course.